In short, the solution to turning off this feature is to go into System->Preferences->Assistive Technologies, press “Keyboard Accessibility”, then under “Mouse Keys” uncheck “Pointer can be controlled using the keypad.”

My KVM switch often leaves the shift state down – and the keyboard shortcut for this is Shift + NumLock.

I recently upgraded my Ubuntu installation from 9.10 (with the old 8.10 video drivers that didn’t crash) to 10.04. I immediately began seeing the video crash, especially when there was a lot of activity.

It turns out I have an Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 01). This is one of the many Intel video cards that have trouble.